Magnetic disc



FIG. 1 is a top view of a magnetic disc embodying our new design,

FIG. 2 is a front view thereof,

FIG. 3 is a right side view thereof,

FIG. 4 is a rear view thereof,

FIG. 5 is a left side view thereof,

FIG. 6 is a bottom view thereof,

FIG. 7 is a perspective view thereof. 

The ornamental design for a magnetic disk, as shown. 